Time for a new swimsuit?

So, for those who have swam alot, when do you replace your swimsuit? I've been using the same pair of TYR swim jammers now for a few years, I'm in the pool maybe 3 times a week. I know that chlorine and bromine take their toll on swim garments. during my last few lap swim sessions I noticed that my jammers were really lose fitting and would hang down below my knees, and they also show signs of chaffing damage, I'm thinking it may be time to replace them.